Brianna Gentilella is an American actor and voice actor known for her work in animation, particularly for children's television and in English dubs of anime. She received a Bachelor of Fine Arts in acting from Pace University's Dyson School of Performing Arts, graduating magna cum laude. Her training also includes study at the Groundlings School of Improv and the Howard Fine Studio in Los Angeles.

Gentilella began performing professionally as a child. At the age of eleven, she appeared in the original Broadway cast of Dr. Seuss' How The Grinch Stole Christmas. Her early voice work included providing various voices for the Nick Jr. series Blue's Clues.

She is perhaps best known for originating the role of Molly, a main character, on the long-running Nick Jr. animated series Bubble Guppies. This role is her most prominent credit in children's television. In addition to her voice work on the show, her performance is featured on related DVD releases, such as Bubble Guppies: Animals Everywhere! and Bubble Guppies: The New Guppy!.

In the realm of anime, Gentilella provided the English dub voice for the title character in the 2021 animated film Pompo: The Cinéphile. She voiced Joel Davidovich Pomponett, known as Pompo, a talented and gutsy film producer in the movie's English language release. This role represents a notable credit in her career, bringing an anime character to life for an English-speaking audience.